In this paper,the bi-peak model is applied on both Bar and Stack lasers.By superposition of intensity for each emitter non-coherently,the far-field intensity models of Bar and Stack lasers are obtained.According to this model,the distributions of far-field intensity of Bar and Stack lasers are simulated.For Bar and Stack lasers,quantitative descriptions of both homogeneously-distributed regions and the position where the distribution is similar to bi-peak distribution formed by a single emitter are given.The corresponding experienced formulas are also presented.By employing these formulas and the parameters on the datasheet,the homogeneously-distributed regions and the position where the distribution is similar to the bi-peak distribution formed by a single emitter can be easily found.The results are expected to provide a theoretical foundation for the design of optical systems and the evaluation of the laser beam quality in the practical application.